1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.upgrade.util;
24  
25  import com.liferay.portal.kernel.util.GetterUtil;
26  import com.liferay.portal.upgrade.StagnantRowException;
27  
28  /**
29   * <a href="DefaultPKMapper.java.html"><b><i>View Source</i></b></a>
30   *
31   * @author Brian Wing Shun Chan
32   */
33  public class DefaultPKMapper extends ValueMapperWrapper {
34  
35      public DefaultPKMapper(ValueMapper valueMapper) {
36          super(valueMapper);
37      }
38  
39      public Object getNewValue(Object oldValue) throws Exception {
40          String oldValueString = GetterUtil.getString(
41              String.valueOf(oldValue));
42  
43          if (oldValueString.equals("-1") || oldValueString.equals("0") ||
44              oldValueString.equals("")) {
45  
46              return new Long(0);
47          }
48          else {
49              try {
50                  ValueMapper valueMapper = getValueMapper();
51  
52                  return valueMapper.getNewValue(oldValue);
53              }
54              catch (StagnantRowException sre) {
55                  return new Long(0);
56              }
57          }
58      }
59  
60  }